Influence of Co~(++) ion concentration on magnetic and microwave properties of Ba_((4_X))Co_((2+x))Fe_(36)O_(60) (Ba-M-Y) hexaferrite

摘要

AbstractThe present paper reports the influence of cobalt content on the structural, electrical, magnetic and microwave properties of barium hexaferrite synthesized via chemical co-precipitation method. The samples were characterized for their structural, electrical, magnetic and microwave characterizations using XRD, SEM, TEM, VSM etc. The transmission electron microscopy results showed that stacking of nanoparticles of size ~ 50 nm. In addition, the highest saturation magnetization of 29.82 emu/g was observed for composition x = 0.2. The microwave permittivity and permeability decreases with frequency and it varies with the cobalt concentration. Cobalt concentration strongly affects the microwave and magnetic properties of hexaferrite.